Infiltration technique modelling
Résumé
Casting techniques, which consist in infiltrating a porous network by a metal, enable to make cheap metal foams with very regular cell shape. To make a right foamed part, the pouring device has to be sized with a number of gates sufficient to fill completely the porous network before metal solidification. Nevertheless, the number of gates must be as low as possible for economical reasons. As a consequence, it is necessary to estimate the length of network that can be infiltrated from one gate to optimize the pouring device. In this article, a model to predict the length of porous network that can be infiltrated by the metal before solidifying is presented. It considers fluid mechanics and thermal aspects separately. Its predictions are compared with experimental measures in the case of the infiltration of a chloride sodium preform by an AlSi10Mg alloy.
Domaines
Matériaux
Origine : Fichiers produits par l'(les) auteur(s)
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